Scarlet Thread is a 1951 British crime drama film directed by Lewis Gilbert and produced by Ernest G. Roy.

The robbery goes wrong and an innocent man is shot.

The film was made at Nettlefold Studios, Walton-on-Thames in Surrey, England, and on location.

A collection of location stills and corresponding contemporary photographs is hosted at reelstreets.com.

This article related to a British film of the 1950s is a stub.